Home / 111,532.27-153,904.30-66,202.51

Finding the Fourth Proportional to 111,532.27, 153,904.30 and 66,202.51

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Solution

The fourth proportional to 111,532.27, 153,904.30 and 66,202.51 is: 91,353.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,532.27 : 153,904.30 = 66,202.51 : x
  2. Step 2: Convert to fraction form
    111,532.27/153,904.30 = 66,202.51/x
  3. Step 3: Cross multiply
    111,532.27x = 153,904.30 × 66,202.51
  4. Step 4: Simplify right side
    111,532.27x = 10,188,850,959.79
  5. Step 5: Solve for x
    x = 10,188,850,959.79/111,532.27
  6. Step 6: Final answer
    x = 91,353.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.